Sickle head



March 11, 1924. v 1,486,811

c. B. STRANG S I CKLE HEAD Filed Aug. 29 1921 v I 2 42 2v 22:1823 1 2o 7CHARLES BENTON STBANG, OF LINDENWOOD, ILLINOIS.

SICKLE HEAD.

Application filed August 29, 1921. Serial No. 496,623.

To aZZ whom it may concern:

Be it known that Gnannns BENTON S'IRAHG, a citizen of the United Statesof America, residing at Linoenwood, in the county of Ogle and State ofIllinois, has invented new and useful Improvements in Sickle Heads, ofwhich the following is a specification.

The object of the invention is to provide a simple and elficientconstruction of sickle adapted for universal adjustment to suit therelative positions and longitudinal and transverse angular adjustmentsof the sickle and finger bars, the pitman and related elements to insurea proper communication of mot on to the sickle head and hence to thesick e bar with the minxnum of frictional re sistance and the liabilityof disarrangement 'n operation; and with these objects in view heinvention consists in a construction and combination of parts of which apreferred embodiment is shown in the accompanying drawings, whereinFigure .1 is a rear view of a sickle head embodying the invention.

Figure 2 is a plan view of the same.

Figure 3 is a detail View in perspective of the journal block.

Figure 4 is a similar view of the link by which the pitman is connectedwith the journal block.

The sickle head 10 carries a universally mounted journal block 11 havinga longitudinal axis of movement, and mounted on the block with atransverse axis of movement is a link 12 forming a connecting betweenthe block and a clip 13 which is adapted for attachment to a pitman rod1 iby which reciprocatory movement is communicated to the sickle head,said clip having a vertical axis of movement by means of the pivot bolt15 with relation to the link, or an axis of movement which isperpendicular to the axis of movement of the link with relation to thejournal block.

In the construction illustrated the sickle head is provided with studs16 in which are threaded the center screws 17 having center pointbearings 18 for engagement with sockets 19 in the parallel diametricallyopposite surfaces of the journal block, jamb nuts 20 being fitted uponthe center screws for locking them in their adjusted positions.Correspondingly center screws 21 are extended through bearing eyes 22 inthe spaced parallel arms 12 of the looped link 12 and are provided withcenter points 23 engaging sockets 24E also in the opposite sides of thejournal block in a plane perpendicular to that of the sockets 19, whilecarried by the journal block in communication with the said sockets isan oil cup 25.

The inner end of the link beyond the eyes 22 is upturned to form alooped guard finger 26 adapted to protect the oil cup and swing freelyover the same when the angular relation of the link with the head isvaried.

This arrangement of parts provides for a longitudinal and transversetilting movement of the sickle head with relation to the link while thelink is free for swinging movement forwardly and rearwardly withrelation to the pitman to provide for any desired or possibleadjustments of the finger bar without varying the efficiency of thetransmission of motion from the pitman to the sickle head.

Having described the invention, what is claimed as new and useful isz 1. A sickle head carrying a journal block, a pitman engaging clip, anda link connecting the clip with the journal block, the j ournal blockhaving a longitudinal axis of movement on the pitman head, and the linkhaving a transverse axis of movement with relation to the journal blockand having a pivotal connection with the said clip with the axis of saidmovement in a plane perpendicular to the axis of movement with respectto the block, the link being of looped construction arranged instraddling relation with the block.

2. A sickle head carrying a journal block, a pitman engaging clip, and alink connecting the clip with the journal block, the journal blockhaving a longitudinal axis of movement on the pitman head, and the linkhaving a transverse axis of movement with relation to the journal blockand having a pivotal connection with the said clip with the axis of saidmovement in a plane perpendicular to the axis of movement with respectto the block, the link being of looped construction arranged instraddling relation with the block, and provided at its inner end withan upwardly directed looped guard fin er.

3 A sickle head carrying a journal block, a pitman engaging clip, and alink connectingthe clip with the journal block, the journal block havinga longitudinal axis of movement on the pitman head, and the link havinga transverse axis of movement with relation to the journal block andhaving a pivotal connection with the said clip with the axis'of saidmovement in a plane perpendicular to the axis of movement With respectto the block, the link being of looped form and arranged in straddlingrelation with the block and center screws being eX tended through eyesin the sides of the loop for engagement with center sockets in theblock.

In testimony whereof he affixes his signature.

CHARLES BENTON STRANG.

